Data transceiving system, data receiving apparatus, and control method thereof
A technology of receiving equipment and a control method, which is applied in the field of data transmission and can solve problems such as slow adjustment speed
Pending Publication Date: 2022-06-21
南京英锐创电子科技有限公司
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Problems solved by technology
[0004] However, the adjustment speed of the above-mentioned automatic gain control scheme is relatively slow. For a large input signal, it often takes multiple adjustments to reduce the gain to an appropriate value.
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[0043] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Embodiments of the present application are presented in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application.
[0045] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describ...
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The invention relates to a data transceiving system, a data receiving device and a control method thereof. The data receiving device comprises a first energy detection circuit used for comparing a first gain signal with a first preset range and outputting a first energy indication signal according to a comparison result; the second energy detection circuit is used for comparing the filtering signal with a second preset range and outputting a second energy indication signal according to a comparison result; the automatic gain control circuit is connected with the first energy detection circuit and the second energy detection circuit and is used for generating a first gain control signal and a second gain control signal according to the first energy indication signal, the second energy indication signal and the output signal; the first gain control signal is used for adjusting the first gain, and the second gain control signal is used for adjusting the second gain. The data receiving equipment can adjust the first gain and the second gain according to the first gain signal and the filtering signal, the adjusting speed is high, and multiple times of adjustment are not needed.
Description
technical field [0001] The present application relates to the technical field of data transmission, and in particular, to a data transceiver system, a data receiving device and a control method thereof. Background technique [0002] A receiver is generally composed of a radio frequency amplifier, a downconverter, a channel filter, a low frequency amplifier and an analog to digital converter (analog to digital converter, ADC). Since the dynamic range of the ADC input is much smaller than the dynamic range of the received signal, it is necessary to add automatic gain control logic to automatically control the gain on the receiving chain according to the size of the received signal, so that the signal energy obtained by the ADC input is within its dynamic range. [0003] At present, automatic gain control is implemented at the output of the ADC; when the ADC is saturated, it tries to reduce the gain of the receive chain until the ADC is not saturated. [0004] However, the adj...
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Login to View More IPC IPC(8): H04B1/16H03G3/30
CPCH04B1/16H03G3/3036
Inventor 王吉健周亚莉徐红如
Owner 南京英锐创电子科技有限公司